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The Location of the Dwarf Gene in Rice Variety Xueheaizao
Lin Hongxuan,Xiong Zhenmin,Min Shaokai,Wu Mingguo,Yu Guilin
1993, 7(1):
17-20 .
The research deals with the relation of the dwarf gene sd-s(t) presenting in Yunnan rice variety Xueheaizao, with 20 known dwarf genes and 2 marker genes gh-1 and st-2 in linkage group Ⅳ+Ⅸ. The results indicated that sd-s(t) was nonallellc to the following dwarf genes: d-2, d-3, d-6, d-7, d-10, d-11, d-12, d-13, d-14, d-17, d-18h, d-19, d-27, d-30, d-35, d-42, d-47, d-51, d-52, but possibly a multiple allele to d-1. It suggests that the gene symbol sd-s (t) be renamed as d-1x. The dominance order of these multiple alleles is+>d-1x>d-1. The recombination value between d-1x and gh-1 is 33%+5.6%, that between d-1x and st-2 is 23%±6.1%, while a 48%+4.7% recombination occurs between gh-1 and st-2, indicating that d-1x locus is between gh-1 and st-2 loci in linkage group Ⅵ+Ⅸ.
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